
/****************************************************************************
**
** Copyright (C) 2004-2008 VATATA.com . All rights reserved.
**
** This file is the part of the Miniutil Poject of VATATA.com.
** Vatata's miniutil library is lightweight and portable (for linux
** and Windows). The C++ Class Library included Threadpool, Dll danymic loading, 
** General socket application model and tcp server, httpserver/servlet, etc. 
** It is a pratical utility disigned for who don't want learn the Big C++ 
** Developing Platform, such as  Boost or ACE.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
** your option) use any later version of the GNU General Public
** License if such license has been publicly approved by VATATA.com.
** (or its successors, if any) and the Miniutil Project Aministrators. 
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://www.gnu.org/licenses/lgpl.html. If you are unsure which 
** license is appropriate for your use, please review the following 
** information: http://code.google.com/p/miniutil/ or contact 
** http://www.vatata.com.
**
** In addition, as a special exception, VATATA.com, as the sole
** copyright holder for Miniutil Project, grants users of VATATA
** P2P Platform the right to release and package with the related 
** libraries without the source code.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. vatata reserves all rights not expressly
** granted herein.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/



#ifndef __MINIUTIL__PROCESS__H__
#define __MINIUTIL__PROCESS__H__


#ifdef WIN32

# include <winsock2.h>
# include <windows.h>
typedef  PROCESS_INFORMATION process_info ;
typedef  HANDLE process_handle;

#else

# include <unistd.h>
typedef  pid_t process_info;
typedef  int process_handle;

#endif

#include <string>

using namespace std;

namespace miniutil {

	//void bgrun( const string & cmd );

	class process
	{
	protected:
		process( string cmd );

	public:
		~process();

		static process * create( string cmd );
        static void restartSelf( int interval, bool bshow = false);

		long read( char *buf, long size );
		long readerr( char *buf, long size );
		long write(char *buf, long size );

		int waitProcess();
		void killProcess();

		bool isRunning();
		int getExitCode();

		static const int UNKNOWN_ERROR = -1;
		static const int PROCESS_OK =  0;
		static const int CREATEPIPE_FAILED = 1;
		static const int CREATEPROC_FAILED = 2;

	private:
		bool runningFlag;
		int __exitCode;
		int __errorCode;

		process_info childInfo;
		process_handle in, out, err;

	};
}

#endif

